The methodological manual was prepared on the basis of obtained original documents on the training of sabotage and terrorist groups on the territory of Chechnya, as well as the experience of conducting combat operations with Chechen gangster groups in August-October 1999. The manual is intended for studying the tactics of actions of Chechen gangs by reconnaissance personnel, motorized rifle, air assault units of the RF Armed Forces and special units of the Ministry of Internal Affairs, as well as for practical use in developing countermeasures in the fight against sabotage and reconnaissance groups and gangs